Pneumatic tool.



No. 725,337. g PATBNTED APR. 14. 1903.

' 0. H. HAESELER.

PNEUMATIC TOOL.

APPLIOATION FILED SEPT. 18, 1902.

NO MODEL.

7 -W/TNES88: I 4 "I I M I BY v L W @Zrronuen} end theinternally-threaded portion a.

NITED STATES- PATENT OFFICE.

CHARLES H. HAESELER, OF EASTON, PENNSYLVANIA, ASSIGNOR TO THElIAESELER-INGERSOLL PNEUMATIC TOOL COMPANY, OF NEW YORK, N. Y., ACORPORATION OF WEST VIRGINIA.

PNEUMATIC TOOL.

SPECIFIGATION forming part of Letters Patent No. 725,337, dated April1903.

Application filed September 18, 1902. Serial No. 123,883. (No model.)

To a, whom it may concern:

Be it known that I, CHARLES H. HAESELER, a citizen of the United States,residing at Easton, county of Northampton, and State of Pennsylvania,have invented a new and useful Improvement in Pneumatic Tools, of whichthe following is a full, clear, and exact description, reference beinghad to the accom panying drawings, which form a part of thisspecification.

My invention has for its object the production of a construction whichwill insure a fixed connection between the separable parts of apneumatic tool. The ordinary construction for securing the con motionbetween the bandle and the cylinder is to provide a thread upon the endof the cylinder which meshes with an internal thread upon the handle.Various locking means have been used to prevent the handle from turningwhen screwed down. The main difficulty with these devices is caused bythe difficulty of turning the handle tothe same point at all times, dueto the wearing otithe thread or other causes. By my improvedconstruction I am enabled under all conditions to provide a lock betweenthe handle and the cylinder proper, so that the position of the handlemay be varied and yet a fixed lock obtained.

The invention is of course applicable to any two separable parts of apneumatic tool; but I have shown it as applied to the cylinder andhandle, Where the invention will have its most usual application.

I will first describe the embodiment of my invention described in theaccompanying drawings and then point out the invention in the claims.

In the drawings, Figure l is a side elevation, partially in section, ofthe handle and a portion of the cylinder. Fig. 2 is a section on theline 2' 2,Fig.' 1. Fig. 3 is a detail view of the clamping-ring. Fig. atis a detail view of the key.

A represents the handle, having at its lower The bottom edge of thishandle is provided with notches a,cut therein, twenty of such notchesbeing shown. The upper portion of the cylinder B has the flanges b 1),between which is formed the groove 1). Through 'theseflanges and thegroove are formed the vertical slots or grooves 0, seven being shown.When the handle is screwed as far down as possible, one of the notches awill come in alinement with one of the slots or grooves O, and the key(shown in Fig. 4) is then inserted, so that the portion K is in thegroove or slot 0 and the portion M in the groove I), while the upperportion rests in a notch a. If for any reason it should subsequently bepossible to force the handle farther down than before, one. or the otherof the notches will be in alinement with a slot or groove, and this willpractically follow with considerable variation between the position ofthe handle and cyl inder. While I have found in practice twenty notchesin the bottom edge of the handle and seven slots in the cylinder givegood results, still I do not intend to limit myself to any particularnumber, nor do I intend to limit myself to any particular characterofnotches or grooves. My invention may be carried out provided the numberof notches differs from the number of grooves and one is not themultiple of the other. By this construction I am practically enabledwith any relation of position of handle and cylinder to have a slot andnotch in alinement with each other and to insert the key. In order tohold the key in position, I use a band S, of spring metal, which ispassed around thegroove b and in the notched portion M of the key. Thisband is held in place by the crimped projections N engaging each side ofthe inserted key with the grooves O in the cylinder.

Having now fully described my invention, what I claim, and desire toprotect by Letters Patent, is

1. In a pneu matic tool,the combination with the separable partsthereof, one part having a threaded end, the other-part provided with athreaded portion adapted to engage the thread upon the first-mentionedpart, there being notches or grooves in the parts respectively adaptedto register with each other, the number. of notches or grooves in therespective parts differing one from the other and not being multiples ofeach other, of means through the medium of said notches and grooves tohold the parts together.

2. In a pneumatic tool,the combination with the separable parts thereof,one part having a threaded end, the other part provided with a threadedportion adapted to engage the thread upon the first-mentioned part,there being notches or grooves in the parts respectively adapted toregister with each other, the number of notches or grooves in therespective parts differing one from the other and not being multiples ofeach other, of a key adapted to be inserted in the registering notchesor grooves.

3. Inapneumatic tool,the combination with the separable parts thereof,one part provided with a threaded end and vertical grooves, the otherpart provided with an internallythreaded portion at its end adapted tomesh with the threaded end of the first-mentioned part, and notches inits end adapted to register with the vertical grooves in thefirst-mentioned part, the number of notches and grooves in therespective parts differing from each other and not being multiples ofeach other, of means through the medium of said notches and grooves tohold the parts together.

4. In a pneumatic tool, in combination with the separable parts thereof,one part provided with a threaded end and vertical grooves, the otherpart provided with an internally-threaded portion at its end adapted tomesh with the threaded end of the first-mentioned part and notches inits end adapted to register with the vertical grooves in thefirst-mentioned part, the number of notches and grooves in therespective parts didering from each other and not being multiples ofeach other, of a key adapted to be inserted in the registering notch andgroove.

5. In apneumatic tool,the combination with the separable parts thereof,one part provided with a threaded end and projecting flanges forming anannular groove between them, vertical grooves in said flanges andannular groove, the other part provided with an internally-threadedportion adapted to mesh with the threaded end of the first-mentionedpart and provided with notches in its edge, the notches and grooves inthe respective parts differing in number and not being multiples of eachother, of means through the medium of said notches and grooves to holdthe parts together.

6. In a pneumatic tool, in combination with the separable parts thereof,one part provided with a threaded end and projecting flanges forming anannular groove between them, vertical grooves in said flanges andannular groove, the other part provided with an internally-threadedportion adapted to mesh with the threaded end of the first-mentionedpart and provided with notches in its edge, the notches and grooves inthe respective parts differing in number and not being multiples of eachother, of a key adapted to be inserted in the registering notch andgroove.

7. In a pneumatic tool,the combination with the separable parts thereof,one part provided with a threaded end and projecting flanges forming anannular groove between them, vertical grooves in said flanges andannular groove, the other part provided with an internally-threadedportion adapted to mesh with the threaded end of the first-mentionedpart and provided with notches in its edge, the notches and grooves inthe respective parts diiferingin number and not being multiples of eachother, of a key having a cutaway portion adapted to be inserted in theregistering notch and groove, the cut-away portion resting in theannular groove and a locking device adapted to encircle said key at itscut-way portion.

8. In a pneumatic tool,the combination with the separable parts thereof,one part provided with a threaded end and projecting flanges forming anannular groove between them, vertical grooves in said flanges andannular groove, the other part provided with an internally-threadedportion adapted to mesh with the'threaded end of the first-mentionedpart and provided with notches in its edge, the notches and grooves inthe respective parts differing in number and not being multiples of eachother, a key having a cut-away portion adapted to be inserted in theregistering notch and groove, the cut-away por tion resting in theannular groove, and a resilient band adapted to encircle said key at itscut-away portion.

In testimony of which invention I have hereunto set my hand.

CHARLES H. HAESELER.

XVitnesses:

A. H. TAYLOR, CHAS. COBB VAN RIPER.

